What size plug recommended for this cooling head?



inspectorcritic

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Joined
Dec 13, 2015
Messages
1,100
I tried the B6HS it ran like sh*t very rough crap out on hills.
I went back to a new plug a NGK TR 55 or 66 V power this time I notice that when you change plug ratings you might half to change carb setting I notice when I took the plug out it drip oil and was wet all over I set the needle on the leanest level so far my performance and speed has greatly improved and the stem reaches into the combustion chamber not like them shorties I'm doing around 30 MPH + or - again so I'm pleased so far.
 

inspectorcritic

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Joined
Dec 13, 2015
Messages
1,100
I think the cooler the leaner cuz with a C4Z is hotter heat rating #4 running right in the middle is just right for a coco brown look.
 

Zak

Active Member
Joined
Mar 21, 2019
Messages
220
Right now I'm running rich, I have to play with it to keep it from 4 stroking. I am running a BCH6 ... I'm gonna try out a 5.
 
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